From: "Denys Dmytriyenko" <denis@denix.org>
To: Kevin Hao <kexin.hao@windriver.com>
Cc: poky@lists.yoctoproject.org,
Richard Purdie <richard.purdie@linuxfoundation.org>
Subject: Re: [poky] [PATCH] meta-yocto-bsp: beaglebone: Set a fixed size for boot partition in WIC image
Date: Tue, 23 Mar 2021 12:34:11 -0400 [thread overview]
Message-ID: <20210323163411.GK18041@denix.org> (raw)
In-Reply-To: <20210323093529.35493-1-kexin.hao@windriver.com>
On Tue, Mar 23, 2021 at 05:35:29PM +0800, Kevin Hao wrote:
> After the dosfstools has been updated to v4.2 by commit b522f24723e1
> ("dosfstools: update 4.1 -> 4.2"), the commit b29eb5be67e9 ("mkfs.fat:
> Align total number of sectors to be multiple of sectors per track") in
> v4.2 has caused a regression in beagebone black board. The reason is
> that the real total sectors of the fat filesystem created by the mkdosfs
> may not be the same size as what we requested due to align with the
> sectors per track, this change seem no side effect to linux kernel,
> but it breaks the beaglebone black boot ROM and make it can't load the
> MLO. In order to fix this issue, we choose to set a fixed size for the
> boot partition to make sure that the total sectors always are aligned
> with the sectors per track.
Thanks for getting to the root cause of the failure!
Yeah, embedded boot ROM is not very flexible and has rather simplistic
understanding of FAT.
--
Denys
> [Yocto #14306]
>
> Signed-off-by: Kevin Hao <kexin.hao@windriver.com>
> ---
> meta-yocto-bsp/wic/beaglebone-yocto.wks | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/meta-yocto-bsp/wic/beaglebone-yocto.wks b/meta-yocto-bsp/wic/beaglebone-yocto.wks
> index 701ae0b3d4bd..7a28fb23dc89 100644
> --- a/meta-yocto-bsp/wic/beaglebone-yocto.wks
> +++ b/meta-yocto-bsp/wic/beaglebone-yocto.wks
> @@ -2,6 +2,6 @@
> # long-description: Creates a partitioned SD card image for Beaglebone.
> # Boot files are located in the first vfat partition.
>
> -part /boot --source bootimg-partition --ondisk mmcblk0 --fstype=vfat --label boot --active --align 4 --size 16 --sourceparams="loader=u-boot" --use-uuid
> +part /boot --source bootimg-partition --ondisk mmcblk0 --fstype=vfat --label boot --active --align 4 --fixed-size 32 --sourceparams="loader=u-boot" --use-uuid
> part / --source rootfs --ondisk mmcblk0 --fstype=ext4 --label root --align 4 --use-uuid
> bootloader --append="console=ttyS0,115200"
> --
> 2.30.2
prev parent reply other threads:[~2021-03-23 16:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-23 9:35 [PATCH] meta-yocto-bsp: beaglebone: Set a fixed size for boot partition in WIC image Kevin Hao
2021-03-23 16:34 ` Denys Dmytriyenko [this message]
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